Essays on Double Helix

Final Test

Explain in general terms the process of DNA replication. The replication of the DNA starts when the double helix unwinds. Each of the two strands serves as the template using which the new DNA double helix strands are formed. The different bases on each of the two strands are then matched in order to form a new set of two strands. Each of the new strands partners with the parent strand to form a double helix (Roth 26).

Prophase – Chromatids are joined at the centromere. Spindle formation occurs. The separation of centrioles occurs in animal cells (Tobin and Jennie ...

Question 1

DNA replication can be defined as the process by which during cell division the DNA duplicates itself to several copies. In this process, the first step involves the unzipping of the double helix found in the DNA structure. This is done by the helicase enzyme, which breaks hydrogen bonds holding the DNA together. When separated the two DNA strands form a replication fork with a Y shape (Craig et al. 2014). This causes the strands to be oriented in different directions, forming the leading and the lagging strands. Once the two orientations are formed, a short RNA piece called ...

Biology

(Department)

DNA and its importance in our lives

Introduction Deoxyribonucleic acid (DNA) is a long linear polymer located in the nucleus of a cell. It is developed from nucleotides and shaped like a double helix. It is related to the transmission of hereditary information from one generation to the second generation. DNA contains the information for the development as well as reproduction of an organism, thereby leading to a normal life. In the year 1953, James Watson, a biologist, and Francis Crick, a physicist, discovered the structure of DNA in a laboratory in England (LEROY, 2003). The structure of DNA helped scientists to know the process ...

I am an individual with varied interests. However, I have always remained fascinated by the science of the DNA Double Helix.  My fascination in DNA Double Helix and its functionality goes back to the 6th grade when I stumbled over my cousin’s biology assignments on the structure and functionality of the DNA Double Helix. I remember asking him to explain it to me. He said a lot of staff I could not understand then, but the only thing that caught my attention is conservative nature of DNA Double Helix. My focus on the DNA Double Helix grew fonder ...